——I think it's going to be a big problem. ——Yes, it could be. ——I wonder ______ we can do about it.( )
A.if
B.how
C.what
D.that
正确答案是C
——I think it's going to be a big problem. ——Yes, it could be. ——I wonder ______ we can do about it.( )
A.if
B.how
C.what
D.that
正确答案是C